Combination heater outlet and air circulator



July 28, 1953 J, 5, ANDREWS 2,646,744

COMBINATION HEATER OUTLET AND AIR CIRCULATOR Filed April 23, 1949 v 2Sheets-Sheet l INVENTOR. JOHN S. ANDREWS AGE/VT u y ,1 J. s. ANDREWSCOMBINATION HEATER OUTLET AND AIR CIRCULATOR 2 Sheets-Sheet 2 FiledApril 23, 1949 Jofi 22 Ayzirems Patented July 28, 1953 COMBINATIONHEATER OUTLET AND AIR CIRCULATOR John S. AndrewsfLos Angeles, Calif.Application April 23, 1949, Serial No. 89,222

My invention relates to a combination heater outlet and air circulator,and the objects of my invention are:

First, to provide a heater outlet and a hood above said outlet having:air propelling means therein which changes the direction of the risingheat from vertical plane to a horizontal plane, whereby heat deliveredby a conventional wall heater or the like may be completely circulatedthroughout a room, which more quickly and uniformly heats the room;

'Second, to provide a combination heater outletand air circulator whichprevents heat delivered from a heater'from becoming concentrated in onesmall area in a room;

Third, to provide a combination heater outlet and air circulator whichprevents the heated air from going up the wall from the grille or a wallheater and depositing particles of dust on the wall, and discoloring theceiling thereabove;

Fourth, to provide a combination heater outlet and air circulator ofthis class which may be readily controlled by means of a conventionalthermostatic switch or. the like;

Fifth, to provide a combination heater outlet and air circulator of thisclass which may be used in summer and winter for the purpose ofcirculating air in a room;

Sixth, to provide a combination heater outlet and aircirculator of thisclass which forces warm air horizontally into contact with variousobjects in the room which more evenly and more quickly heats the room,as compared to a direct thermal rise of' the heat from one location tothe ceiling and subsequent spreading of the heat over the area of theceiling of a room; and

Seventh, to provide a combination heater outlet and air circulator ofthis class which is very simple and economical of construction,efficient I in operation, and which will not readily deteriorate or'getout of order.

With these and other objects in view, as will appear hereinafter, myinvention. consists of certain novel features of construction,combination 7 and arrangement of parts and portions, as will be 2Claims. (01. 9s1 0s) 2 circulation of air through my combination heateroutlet and air circulator; Fig. 3 is a partial plan view and horizontalsection as seen on the line 3--3 of Fig. 1; Fig. 4 is an inverted planview taken on the line 4-4 of Fig. 1; Fig. 5 is a view in cross sectionand elevation with portionsbroken away as seen on the line 55 of Fig. 1in the direction indicated by the arrows; and Fig. 6 is a detail insection and elevation as seen on the line 66 of Fig. 5 in the directionindicated by the arrows.

Similar characters of reference refer to similar parts and portionsthroughout the several views of the drawings.

The heater outlet grille I, hood 2, motor casing 3, fan 4, and motor 5,constitute the principal parts and portions of my combination heateroutlet and air circulator.

The heater outlet grille I may be the grille of a conventional wallheater, radiator or other heat delivering device, which is normallyplaced .adjacent a wall A, as shown in Fig. 2 of the drawing. Positioneddirectly above the grille l is the hood 2, which is elongated andextends horizontally in overhanging relationship with the grille I andtherebeyond at opposite ends 20!. and 2b of said hood 2. lhe hoodcomprises a top wall 'a'extending between the ends 2a and 2b, a frontwall I), and a back wall 0; the intermediate portions of the top wall aand back wall 0 constituting portions of the motor casing 3 whichfurther includes a bottom wall at projecting forwardly of the lower edgeof the back wall 0 to a point intermediate the back wall .0 and frontthe bottom wall at to form the ends of the motor casing.- The frontalportion of the motor casing comprises a vertical Wall 1 extendingupwardly from the forward margin of the bottom wall d to the hoodtopwall a and which wall f constitutes the inner end of a cylindricalhorizontal fan housing 3d which opens to the front of the hood; the wallforminga partition between the motor .and the fan housing. The motorcasing 3 and the fan housing 3d are thus arranged substantially in thecenter of the hood with the motor casing in the rear portion thereofformed by the walls a, c, d, e and J which substantially encase themotor except as to the openings 3a and 3b. Enclosed in the hood 2 bymeans of the motor casing 3 is the motor 5, having an extending shaft Edon which the fan 4 is fixed. The motor casing 3 is provided with aircirculation openings 3a and 3b formed in the walls a and 6 respectively,adapted to provide air circulation sufficient to cool the motor when inoperation; the opening 3a being disposed in the wall a immediately abovethe motor 5 and the opening 322 being disposed in the wall f immediatelyabove the bottom wall (1 and leading to the interior of the fan housing3d. The lower side 2c of the hood 2 is open substantially throughouttoward the grille I, and is adapted to receive air thermally risingupwardly as indicated by the arrows B in Fig. 2 of the drawings. Thelower portion of the fanl hous'ing is :provided with an opening 30,communicating the interior of the hood 2 at its lower .side 20, all asshown best in Figs. 5 and 6 of the drawings.

The hood 2 and the walls of the motor casing 3 and the fan housing 361,may be made of sheet metal, if desired, or any other suitable material,and maybe :fixed on the wall A at any desired distance above the grillei for the purpose of uniformly circulating warm air throughout the roomin which the 'hc'od 2 is positioned.

The operation of any combination iheater :outlet and warm air:cireu'lator is substantially :as follows:

When the warm air,-a-s indicated Lby arrows :B, rises from the source of:heat or through the heater outlet grille I, operation of the fan 4creates a vacuum at the opening do in the .motor casing 3, tending toforce all of the warm air passing upwardly from the grille i, which isforced from the fan 4 in a horizontal direction with considerablevelocity, which causes the "warm air to impinge upon and pass throughvarious articles, such as tables and furniture, or the like, whiclidirectly heats lthe :variou-sportions of 5116"0'0111 and-articlestherein by .con-

:duction, and maintains heat at a normally 110wer level sooner thanwould be :expected if the warm air were permitted to rise "to the:ceiling directly from the grille I A-conventional ther- 'mostat '5 maybe:prov'ided for controlling the-.op-

eration of the air circulator, including the=motor '5- an'd the faniaand it is -.obvious that ithe fan kin-a position at the inner surfaceof the wall may be used as-an air circulating :clevice-in warm weather'for driving cool air when the source of heat inwardly of theheatersoutletigrille is inoperative.

It avill ibe :noted that arrows indicating :the passage 1 of air throughthe openings 13a and 53b Though Ihave shown and described-a Lparticularconstruction, combination and arrangementof par-tsand portions, Ido notwish atovbe limited to this particular construction,.combination' andarrangement, but: desire .to;include:1in=.the scope ofmy inventiontheconstruction, combination andzarrangement substantially sasvset forthin the appended claims.

Having thus tdescribed my invention, what I 4 claim as new and desire tosecure by Letters Patent is:

1. In a combination heater outlet and air ciroulator, a wall, heatoutlet means at the normally inner side of said wall, an elongated hoodadjacent said wall above said heat outlet means and overhanging thesame, said hood having an open lower side, a motor casing arrangedsubstantially in the center and at :the rear portion of said hood, saidhood having a substantially hollow cylindrical horizontal fan housingopening to the front of the hood and provided with an opening in thelower side thereof communicating with the interior of said hood, saidhollow cylindrical fan housing substantially enclosed at the other endadjacent said motor casing, a moitor said motor casing having a shaftprojecting through the closed end of said hollow fan housingportion ofsaid motor casing, and a fan on the extended end of said shaft, theclosed end of said fan "housing constituting E31 partition between-saidfan and motor.

2. In a combination heater outlet and air 61 cu'lator, a wall, heatoutlet means at the normaily inner side of said wall, an elongated hoodadjacent said wall above said heat outlet means and overhanging -:thesame, said ,hood having :an open lower side, a motor casing ,au'anged;sub stantially in the center and at the "rear portion of said hood,said hood having -.a substantially hollow cylindrical horizontal ifan:hollsing pro- =vided with an opening in the :under side thereofcommunicating with :the interior .of .said hood said hollow cylindricalian housing being iopenat one end substantially enclosed-at the otherend adjacent said l'llOt0l" O8,SlIlg, 1a motorin said mo tor casinghaving 1 a shaft projecting ithrough like closedendofsaidfan'housingan-d aian (in-th extended end of said shaft, itheclosed;end1.o,i said fan housing constitutingla partition :betweensaid ianand-motor, and said motorcasing having an opening in the uppersidecommunicating -.W i the motor and an opening .in -.the closed end :ofsaid fan housing for creating .air mireulatio l around said motor.

JOH DLSL References Cited in the file of this patent UNITED STATESPATENTS Number Name Date 1,391,645 Wheller Sept. V20, .1921 1,510,808,Soule ,Oct. ,7, .1924 1,645,140 Herbruck Oct. il,l, 1927 1,743,994'Waterbury Jan. 15,1930 1,825,423 Rottinghaus .Sept. 29, 1931 1,875,683Waterbury .Sept. ,6, .1932 .-1,884,0.94 .Modine, Oct. 25, 1932 2,052,596Barrett Sept. 1, 1936 2,134,142 O-rear Oct. 25,1938 2,313,676 Shaver1Mar.9, 1943 2,352,485 Kritzer jJune' 27,' l944 FOREIGN PATENTS NumberCountry Date 629,559 France 'Aug.'1, 192'7

